body{
    margin:0;padding:0;font-size: 18px;font-family: 微软雅黑;-webkit-touch-callout: none; -webkit-user-select: none;-khtml-user-select: none;-moz-user-select: none; -ms-user-select: none; user-select: none;

}
::-webkit-scrollbar{margin-right:0px;width:2px;border-radius: 10px;}
::-webkit-scrollbar-track-piece{background-color:none;border-radius: 10px;}
::-webkit-scrollbar-thumb{width:2px;background:#CBCBCB;border-radius: 10px;}
::-webkit-scrollbar-thumb:hover{background:#4CACE2;border-radius: 10px;cursor: pointer;}